[racattack] Re: RAC Attack in the Cloud (amazon, rackspace, etc)

  • From: Marcin Przepiorowski <pioro1@xxxxxxxxx>
  • To: racattack@xxxxxxxxxxxxx
  • Date: Tue, 12 Nov 2013 11:47:42 +0000

Hi Jeremy,

Yes I know about IP and yes we can't use public ec2 ip's but my idea was to
create a internal network in VPC with 2 NIC per server - 1 NIC for
interconnect and 1 NIC for "public". Then we need a entry instance and we
can access RAC from there.
NFS probably will be easier option than iSCSI - good point.

I was using QEMU long ago and performance was a issue - I think it could be
a potential stability problem for CRS to not evict instance but maybe it
possible now on faster machine.

regards,
Marcin


On Mon, Nov 11, 2013 at 11:13 PM, Jeremy Schneider <
jeremy.schneider@xxxxxxxxxxxxxx> wrote:

> Marcin - RAC needs to manage its own IPs, even moving them between
> servers.  I don't believe you can do that yet with VPC EC2.  However there
> are a number of third-party (free and commercial) products which virtualize
> networking and let you have your own private network that you completely
> control; I looked into using one of these a few years ago.
>
> I couldn't get openfiler running on EC2 when I tried a few years ago but
> maybe someone has made an image now.  But there are other approaches like
> (1) just using iscsid on any linux distro or (2) using NFS.
>
> I was just emailing someone else about this.  The big question is whether
> to try running directly on the rented instances while providing your own
> storage and your own virtual networking, or whether to use a second layer
> of virtualization like the articles I forwarded earlier.  I've actually
> fired up OEL under QEMU on an EC2 instance - that works.  This approach
> takes a big hit in terms of CPU performance but it offers advantages in
> networking and storage as well as creating a single universal setup that
> you can run on any cloud provider.  (Some third-party network virt products
> also run on several cloud providers.)  Anyway it's a very interesting field
> to be working in!  Something I fiddle around with every now and then.
>
> That being said, at the moment I'm most excited about the work on the dojo
> - especially all the work Seth did! Looking forward to hearing how this
> plays out at UKOUG and/or DOAG!  (Is there a DOAG event this year?)
>
> --
> http://about.me/jeremy_schneider
> Sent from my iPhone
>
> On Nov 11, 2013, at 4:36 PM, Marcin Przepiorowski <pioro1@xxxxxxxxx>
> wrote:
>
> Hi Guys,
>
> I know that officially RAC is not supported in EC2 but I'm wondering what
> will prevent it from running in VPC EC2.
>
> There are private network interfaces and OpenFiler can provide iSCSI
> devices - I didn't have a chance to test it yet. Is there any showstopper
> which I missed ?
>
> regards,
> Marcin
>
>
> On Mon, Nov 11, 2013 at 10:15 PM, Yury Velikanov 
> <velikanovs@xxxxxxxxxxx>wrote:
>
>> FYI: I just reviewed a new series of a blog posts from Marc Fielding
>> dedicated to that topic. Stay tuned :)
>>
>>
>> Best Regards,
>>
>> Yury Velikanov & Pythian - Love your data
>>
>> Oracle ACE Director & Team Technical Lead
>>
>> velikanovs@xxxxxxxxxxx | Twitter: @yvelik <https://twitter.com/yvelik> |
>> Linkedin <http://au.linkedin.com/in/yuryvelikanov>
>>
>> Tel: +1 613 565 8696 x 1277
>> www.pythian.com 
>> AboutMe<https://plus.google.com/u/1/107075205411714880234/about>
>>
>>
>> On Tue, Nov 12, 2013 at 3:15 AM, Jeremy Schneider <
>> jeremy.schneider@xxxxxxxxxxxxxx> wrote:
>>
>>> I've batted this idea around a few times before - trying to run RAC
>>> Attack in the cloud. I'd looked into a bunch of approaches, currently I'm
>>> favoring QEMU (some performance price here but it might work with a large
>>> enough EC2 instance).
>>>
>>> Just now came across two interesting blog posts on the topic.  It's a
>>> corp blog and they're selling their product, but still very informative and
>>> they do have some actual numbers about QEMU.  (Not encouraging numbers but
>>> I'm still interested in trying this sometime to see if it works!)
>>>
>>> If anyone's interested, here are the blog posts:
>>>
>>> http://www.ravellosystems.com/blog/nested-virtualization-with-binary-translation/
>>>
>>> http://www.ravellosystems.com/blog/nested-virtualization-shootout-ravello-vmware-qemu/
>>>
>>> -Jeremy
>>>
>>> --
>>> http://about.me/jeremy_schneider
>>>
>>
>>
>> --
>>
>>
>>
>>
>
>
> --
> Marcin Przepiorowski
> http://oracleprof.blogspot.com
>
>


-- 
Marcin Przepiorowski
http://oracleprof.blogspot.com

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